From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932863AbcAHWDF (ORCPT ); Fri, 8 Jan 2016 17:03:05 -0500 Received: from e23smtp02.au.ibm.com ([202.81.31.144]:52216 "EHLO e23smtp02.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754288AbcAHWDC (ORCPT ); Fri, 8 Jan 2016 17:03:02 -0500 X-IBM-Helo: d23dlp03.au.ibm.com X-IBM-MailFrom: srikar@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Date: Sat, 9 Jan 2016 03:31:54 +0530 From: Srikar Dronamraju To: Alexei Starovoitov Cc: Ingo Molnar , Arnaldo Carvalho de Melo , LKML , Linus Torvalds , Alexei Starovoitov , "David S. Miller" , Anshuman Khandual Subject: Re: perf list segfaults on the v4.4-rc8 (bisect log added) Message-ID: <20160108220154.GB17012@linux.vnet.ibm.com> Reply-To: Srikar Dronamraju References: <20160108203941.GA17012@linux.vnet.ibm.com> <20160108210138.GA12833@ast-mbp.thefacebook.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20160108210138.GA12833@ast-mbp.thefacebook.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16010822-0005-0000-0000-0000030EE501 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > With latest mainline perf, perf list results in a Segmentation fault on > > a powerpc machine. > > > > $ ./perf list > > Segmentation fault (core dumped) > > $ > .. > > Attached is the patch that causes this issue for quick reference. > > > > From a43eec304259a6c637f4014a6d4767159b6a3aa3 Mon Sep 17 00:00:00 2001 > > From: Alexei Starovoitov > > Date: Tue, 20 Oct 2015 20:02:34 -0700 > > Subject: [PATCH] bpf: introduce bpf_perf_event_output() helper > > https://lkml.org/lkml/2016/1/8/330 > this pull req contains the fix. > Pls double check. > Yes, this fixes the problem. -- Thanks and Regards Srikar Dronamraju